Pneumatic gun for fixing elements

Abstract

A pneumatic gun for fixing elements, comprising a body ( 2 ) provided with pneumatically-actuated mechanism for expelling the fixing elements, a handle ( 3 ) that protrudes from the body ( 2 ) and a magazine ( 4 ), for storing and individually feeding the elements, defined by a box-like container ( 11 ) provided with a sliding flap ( 13 ) for inserting the elements, the body ( 2 ) being provided with a working head ( 8 ) for driving the elements that can be coupled to a complementary end head ( 9 ) of the box-like container ( 11 ) that is affected by an opening ( 18 ) for the passage of the elements and is adapted to form, together with the head ( 8 ), a firing channel ( 7 ) for the elements; the gun comprises a guide ( 38 ) that runs from the head ( 8 ) to the handle ( 3 ) and with which the box-like container ( 11 ) is coupled slidingly so as to allow a manual translational motion of the magazine ( 4 ) from a first active end position, in which the complementary head ( 9 ) is adjacent to the head ( 8 ), allowing the expulsion of the elements through the firing channel ( 7 ), to a second position, in which the complementary head ( 9 ) is substantially spaced from the head ( 8 ) in order to allow access to the firing channel ( 7 ).

1. A pneumatic gun for fixing elements, comprising a body ( 2 ) provided with pneumatically-actuated means for expelling said elements, a handle ( 3 ) that protrudes from said body( 2 ) and a magazine ( 4 ) for storing and individually feeding the fixing elements, which is constituted by a box-like container ( 11 ) having a sliding flap ( 13 ) for inserting said elements, said body ( 2 ) having a working head ( 8 ) for driving said elements that can be coupled to a complementary end head ( 9 ) of said box-like container ( 11 ) having an opening ( 18 ) for the passage of said elements and forming, together with said head ( 8 ), a firing channel ( 7 ) for said elements, a guide ( 38 ) running from said head ( 8 ) to said handle ( 3 ) and coupled slidingly with said box-like container ( 11 ) so as to allow a manual translational motion of said magazine ( 4 ) from a first active end position, in which said complementary head ( 9 ) is adjacent to said head ( 8 ), allowing the expulsion of said elements through said firing channel ( 7 ), to a second position, in which said complementary head ( 9 ) is substantially spaced from said head ( 8 ) in order to allow access to said firing channel ( 7 ), said guide ( 38 ) being provided with means ( 48 ) for rapid manual locking and release of the translational motion of said box-like container ( 11 ), said locking and release means ( 48 ) having a releasable safety closure ( 49 ) for preventing the translational motion of said box-like container ( 11 ) when in the second position and accidental disengagement from said guide ( 38 ), the safety closure having means for stopping a stroke of the magazine said means being an insert ( 57 ) engaged detachably in a respective pocket ( 58 ) provided in said guide ( 38 ), for abutting against a retention protrusion ( 59 ) provided along said box-like container ( 11 ) such that to produce a further translational motion of the magazine ( 4 ) with respect to the guide or to extract the magazine completely, the insert ( 57 ) must be removed from the respective pocket. 
   
   
     2. The gun according to  claim 1  wherein said guide ( 38 ) has a profiled element arranged substantiafly at right angles to said head ( 8 ) for forming a longitudinal slot ( 46 ) along which said container ( 11 ) is slidable. 
   
   
     3. The gun according to  claim 1 , characterized in tat said locking and release means ( 48 ) comprise a lever ( 50 ) pivotably mounted, substantially at its centerline, to said guide ( 38 ) and has a first end portion ( 54 ) for actuation and a second end portion that forms a beak ( 55 ) tat abuts against a contoured toot ( 17 ) that is monolithic wit said box-like container ( 11 ), elastic means ( 56 ) interposed between said first end portion ( 54 ) and said guide ( 38 ), said lever ( 50 ) being manually rotatable from a first stable angular position, biased by said elastic means ( 56 ), for locking the sliding of said box-like container ( 11 ), in which said beak ( 55 ) is engaged on said contoured toot ( 17 ), to a second angular position, in which said beak ( 55 ) is substantially disengaged from said tooth ( 17 ), allowing the free sliding of said box-like container ( 11 ) along said guide ( 38 ). 
   
   
     4. The gun according to  claim 2 , wherein said longitudinal slot( 46 ) of said guide ( 38 ) has a substantially T-shaped transverse cross-section. 
   
   
     5. The gun according to  claim 1 , wherein said guide ( 38 ) has an eye ( 43 ) for detachably connecting an extension ( 5 ) of said handle ( 3 ).